FFmpeg
v360.h
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1 /*
2  * Copyright (c) 2019 Eugene Lyapustin
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVFILTER_V360_H
22 #define AVFILTER_V360_H
23 #include "avfilter.h"
24 
30 };
31 
55 };
56 
65 };
66 
67 enum Faces {
75 };
76 
77 enum Direction {
78  RIGHT, ///< Axis +X
79  LEFT, ///< Axis -X
80  UP, ///< Axis +Y
81  DOWN, ///< Axis -Y
82  FRONT, ///< Axis -Z
83  BACK, ///< Axis +Z
85 };
86 
87 enum Rotation {
93 };
94 
96  YAW,
100 };
101 
102 typedef struct XYRemap {
103  int16_t u[4][4];
104  int16_t v[4][4];
105  float ker[4][4];
106 } XYRemap;
107 
108 typedef struct V360Context {
109  const AVClass *class;
110  int in, out;
111  int interp;
112  int alpha;
113  int width, height;
114  char *in_forder;
115  char *out_forder;
116  char *in_frot;
117  char *out_frot;
118  char *rorder;
119 
120  int in_cubemap_face_order[6];
121  int out_cubemap_direction_order[6];
122  int in_cubemap_face_rotation[6];
123  int out_cubemap_face_rotation[6];
124  int rotation_order[3];
125 
126  int in_stereo, out_stereo;
127 
128  float in_pad, out_pad;
129  int fin_pad, fout_pad;
130 
131  float yaw, pitch, roll;
132 
133  int ih_flip, iv_flip;
134  int h_flip, v_flip, d_flip;
135  int in_transpose, out_transpose;
136 
137  float h_fov, v_fov, d_fov;
138  float ih_fov, iv_fov, id_fov;
139  float flat_range[2];
140  float iflat_range[2];
141 
142  float rot_mat[3][3];
143 
144  float input_mirror_modifier[2];
145  float output_mirror_modifier[3];
146 
147  int in_width, in_height;
148  int out_width, out_height;
149 
150  int pr_width[4], pr_height[4];
151 
152  int in_offset_w[4], in_offset_h[4];
153  int out_offset_w[4], out_offset_h[4];
154 
155  int planewidth[4], planeheight[4];
156  int inplanewidth[4], inplaneheight[4];
157  int uv_linesize[4];
160  int elements;
163 
164  int16_t *u[2], *v[2];
165  int16_t *ker[2];
167  unsigned map[4];
168 
169  int (*in_transform)(const struct V360Context *s,
170  const float *vec, int width, int height,
171  int16_t us[4][4], int16_t vs[4][4], float *du, float *dv);
172 
173  int (*out_transform)(const struct V360Context *s,
174  int i, int j, int width, int height,
175  float *vec);
176 
177  void (*calculate_kernel)(float du, float dv, const XYRemap *rmap,
178  int16_t *u, int16_t *v, int16_t *ker);
179 
180  int (*remap_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
181 
182  void (*remap_line)(uint8_t *dst, int width, const uint8_t *const src, ptrdiff_t in_linesize,
183  const int16_t *const u, const int16_t *const v, const int16_t *const ker);
184 } V360Context;
185 
186 void ff_v360_init(V360Context *s, int depth);
187 void ff_v360_init_x86(V360Context *s, int depth);
188 
189 #endif /* AVFILTER_V360_H */
Definition: v360.h:42
Axis +Z.
Definition: v360.h:83
int nb_planes
Definition: v360.h:158
Definition: v360.h:28
Axis +X.
Definition: v360.h:78
Main libavfilter public API header.
int elements
Definition: v360.h:160
int alpha
Definition: v360.h:112
#define us(width, name, range_min, range_max, subs,...)
Definition: cbs_h2645.c:266
Definition: v360.h:52
Definition: v360.h:37
Projections
Definition: v360.h:32
#define src
Definition: vp8dsp.c:254
char * in_frot
Definition: v360.h:116
StereoFormats
Definition: v360.h:25
Axis +Y.
Definition: v360.h:80
Definition: v360.h:47
int16_t u[4][4]
Definition: v360.h:103
Definition: v360.h:68
uint8_t
float yaw
Definition: v360.h:131
int out_transpose
Definition: v360.h:135
Axis -Y.
Definition: v360.h:81
char * out_frot
Definition: v360.h:117
void(* calculate_kernel)(float du, float dv, const XYRemap *rmap, int16_t *u, int16_t *v, int16_t *ker)
Definition: v360.h:177
float iv_fov
Definition: v360.h:138
Definition: v360.h:98
void ff_v360_init(V360Context *s, int depth)
Definition: vf_v360.c:353
#define height
int width
Definition: v360.h:113
InterpMethod
Definition: v360.h:57
int max_value
Definition: v360.h:162
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
Definition: v360.h:96
Definition: v360.h:44
Definition: v360.h:46
Faces
Definition: v360.h:67
const char * arg
Definition: jacosubdec.c:66
Definition: v360.h:62
Definition: v360.h:91
Definition: v360.h:58
int out
Definition: v360.h:110
int out_stereo
Definition: v360.h:126
uint8_t * mask
Definition: v360.h:166
Definition: v360.h:60
RotationOrder
Definition: v360.h:95
Axis -X.
Definition: v360.h:79
int interp
Definition: v360.h:111
Definition: v360.h:89
float out_pad
Definition: v360.h:128
#define width
int(* out_transform)(const struct V360Context *s, int i, int j, int width, int height, float *vec)
Definition: v360.h:173
Definition: v360.h:26
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
int mask_size
Definition: v360.h:161
Definition: v360.h:59
Definition: v360.h:70
AVFormatContext * ctx
Definition: movenc.c:48
Definition: v360.h:61
#define s(width, name)
Definition: cbs_vp9.c:257
int(* remap_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
Definition: v360.h:180
float v_fov
Definition: v360.h:137
Rotation
Definition: v360.h:87
Definition: v360.h:97
int16_t v[4][4]
Definition: v360.h:104
int out_width
Definition: v360.h:148
int nb_allocated
Definition: v360.h:159
Definition: v360.h:88
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(const uint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(const int16_t *) pi >> 8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(const int16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(const int32_t *) pi >> 24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(const int32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(const float *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(const float *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(const double *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(const double *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *) pi *(1U<< 31))))#define SET_CONV_FUNC_GROUP(ofmt, ifmt) static void set_generic_function(AudioConvert *ac){}void ff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int sample_rate, int apply_map){AudioConvert *ac;int in_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) return NULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt) > 2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);return NULL;}return ac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}else if(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;else ac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);return ac;}int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){int use_generic=1;int len=in->nb_samples;int p;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%d samples - audio_convert: %s to %s (dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));return ff_convert_dither(ac-> in
Describe the class of an AVClass context structure.
Definition: log.h:67
Definition: v360.h:102
int v_flip
Definition: v360.h:134
const VDPAUPixFmtMap * map
char * in_forder
Definition: v360.h:114
void ff_v360_init_x86(V360Context *s, int depth)
Definition: vf_v360_init.c:41
Direction
Definition: v360.h:77
void(* remap_line)(uint8_t *dst, int width, const uint8_t *const src, ptrdiff_t in_linesize, const int16_t *const u, const int16_t *const v, const int16_t *const ker)
Definition: v360.h:182
int
Definition: v360.h:90
int iv_flip
Definition: v360.h:133
int fout_pad
Definition: v360.h:129
Definition: v360.h:74
Definition: v360.h:43
char * out_forder
Definition: v360.h:115
float ker[4][4]
Definition: v360.h:105
Axis -Z.
Definition: v360.h:82
An instance of a filter.
Definition: avfilter.h:338
Definition: v360.h:39
char * rorder
Definition: v360.h:118
int in_width
Definition: v360.h:147
Definition: v360.h:63